I-275 SB over Old Tampa Bay
FairPinellas County, Florida · 2.3MI West of SR-60 · Structure no. 150210
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 15,900 ft
- 111 main spans
- Daily traffic
- 83,500
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-275 SB over Old Tampa Bay is a prestressed concrete continuous stringer/multi-beam or girder carrying I-275 SB over Old Tampa Bay in Pinellas County, Florida. It was built in 1991, so it is 34 years old, younger than the Florida average of 41.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 83,500 vehicles a day, roughly 7% of them trucks, projected to reach 144,873 by 2046. The structure is 15,900 ft (4,846.2 m) long and 72 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-275 SB over Old Tampa Bay built?
It was built in 1991, making it 34 years old in 2025.
What condition is I-275 SB over Old Tampa Bay in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does I-275 SB over Old Tampa Bay carry?
About 83,500 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is I-275 SB over Old Tampa Bay?
The structure is 15,900 ft (4,846.2 m) long with a longest span of 145 ft (44.1 m) and a deck 72 ft wide.
Who owns I-275 SB over Old Tampa Bay?
It is owned by the State Highway Agency.